Hi,there 
Which version spark in your use case ? You made hive metastore to be used by 
Spark, 
that mean you can run sql queries over the current hive tables , right ? Or you 
just use 
local hive metastore embeded in spark sql side ? I think you need to provide 
more info
for your spark sql and hive config, that would help to locate root cause for 
the problem.

Best,
Sun.



fightf...@163.com
 
From: Ashok Kumar
Date: 2015-12-01 18:54
To: user@spark.apache.org
Subject: New to Spark

Hi,

I am new to Spark.

I am trying to use spark-sql with SPARK CREATED and HIVE CREATED tables.

I have successfully made Hive metastore to be used by Spark.

In spark-sql I can see the DDL for Hive tables. However, when I do select 
count(1) from HIVE_TABLE it always returns zero rows.

If I create a table in spark as create table SPARK_TABLE as select * from 
HIVE_TABLE, the table schema is created but no data.

I can then use Hive to do INSET SELECT from HIVE_TABLE into SPARK_TABLE. That 
works.

I can then use spark-sql to query the table.

My questions:

Is this correct that spark-sql only sees data in spark created tables but not 
any data in Hive tables?
How can I make Spark read data from existing Hive tables.


Thanks


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